Greenshot - Greenshot is a free and open source screenshot tool that allows annotation and highlighting using the built-in image editor.
CALIPIO Recorder - Secure screen and webcam recording in your browser. End to end encrypted. No installation required.
Swiftdrop - Swiftdrop is a super simple cloud sharing app for Mac.
Free Screencast Recording for Gmail - Free video screencast recording right from Gmail.
ScreenTray - A better way to capture, annotate and share screenshots
VokoscreenNG - VokscreenNG is a user friendly screencaster for Linux and Windows.